Means for transferring molten glass



(No Model.) 2 Sheets-Sheet 1.

' I'. SGHEFOLD.

MEANS FOR TRANSFERRING MOLTEN GLASS,

(No Model.)

2 Sheets-Sheet 2.

F. -SGHEFOLD MEANS FOR IRA1.\ISFJIRRING MOLTEN GLASS.

Patented Apr. 1,1890.

FIG. 3.

NVENTOR #fr N ESSS:

N. PETERSLPMlDthninpbar. W

UNITED STATES PATENT OFFICE.

FRANK SCHEFOLD, OF NEWr ALBANY, INDIANA, ASSIGNOR TO TllE \V. C. DE PAUV COMPANY, OF INDIANA.

MEANS FOR TRANSFER RING MOLTEN GLASS.

SPECIFICATION forming part of Letters Application tiled November 21, 1889.

To all whom it may concern:

Be it known that I, FRANK ScHEFoLD, a citizen of the United States, and a resident of New Albany, in the county of Floyd and State of Indiana, have invented a new and useful means for transferrin g pots containing molten glass from the furnace to the casting-table in the manufacture of glass, and so transfer ring them that they are in such adjustment that when the table is reached said pots will be in the proper position to have their contents poured upon the table; and it also consists in certain novel improvements in apparatus whereby this result is accomplished, all of which is fully set forth herein, reference being had to the drawings, which accompany and form a part of this specification.

In the manufacture of plate-glass as heretofore carried on the pot is taken from the furnace and placed on a small car or truck, which is then pushed to a point adjacent to the casting-table, where it is lifted by a crane or other device to a point above the table and the pot tilted so that its contents are poured onto the table. This operation takes some length of time and is very laborious, and often results in the pots being so long a time from the furnace that they become chilled, and in the next melt they are broken to pieces.

By my improved method I am enabled to convey the pot from the furnace to the casting-table rapidly, and also at or nearly the correct elevation necessary, so that said pot may be tilted and its contents poured onto the casting-table.

My improvement consists, essentially, in transferring the pot from the furnace to a hydraulic lift or jack, which is placed adjacent to the furnace, then elevating` said jack to the desired height, so that when the pot is so elevated it will be at a proper height to have its contents poured onto the cast-ingtable. After the pot is elevated by the jack it is secured by chains or suitable means to an overhead stirrup, which is secured to bearings on a truck, which truck travels on a track, said track extending from a point near the furnace to the various castingftables. There is also connected with the apparatus whichI use in carrying out my method certain con- Patent N0. 424,825, dated April 1, 1890.

Serial No Y$31,114:. (No model.)

structions which enable said method to be carried out.

In the drawings, Figure l is a general view, partially in section, showing furnace, hy draulic lift, casting-table, pot-carrier, and track extending from hydraulic lift to table. Fig. 2 is a perspective View showing carrier and mechanism to connect pot and carrier. Fig. 3 is an end View showing hydraulic lift, also carrier and mechanism to connect said carrier and the pot.

Similar letters denote similar parts.

A represents the ordinary melting-furnace.

B is the pot, in which the glass is placed and melted in the furnace A. The pot B, containing the molten glass, is, as shown, somewhat tapering, being larger in circumference at the upper than at the lower end. The pot is carried bythe pot-holder or tongs, which consists of the ring C, which is of greater circumference than the smaller part of said pot, but of less size than the larger portion of said pot. At each side of said ring are the handles C and C', which are connected to said ring. The ring is slipped over the pot and the pot carried to the hydraulic lift D, which is operated in the ordinary manner by piston D', a three-way valve d', pipes d3 and d, and the operating-wheel D2. The pot rests on the platform D3, and is lifted to the desired height by operating the jack.

E is the carrier or stirrup, the arms c5 e5 e5 c5 of which are secured to bearings c on the axles c' e4. The wheels c2 c2 e2 c2 on said axles rest upon the track T. The portion e3 of said carrier E is internally threaded, and a threaded rod f passes through said internally-threaded portion c3, and also passes through the frame F, to which it is secured by nut f. At the upper end of said rodf is the nut f2. On each side of the frame F are the wheels or bearings f2 f3, and surrounding said wheels or bearings are the chains f* f5, which chains, when the pot B is elevated, are secured to rings c c on the tongs. As may be seen, the pot is suspended at a point central to and below the` axles e e4.

G is the casting-table, where the glass is cast. The track T extends from the liftingjack to the casting-table. As may be seen,

IOO

there may be a number of casting-tables, and I can use one lifting-jack so as to coact with all the casting-tables, the jack being placed near the furnace and the track T extending from said jack to all of said tables. In case the height to which the pot has been elevated should not be absolutely correct when it reaches the casting-table it can be adjusted by turning the frame F, which will cause the rod f to rise, lifting the pot slightly. Of course this would be used for very nice adjustments only. vVhen the pot is brought in position over the casting-table, he pot is tipped and the molten glass poured upon the castingtable.

-Having now fully described my invention, what I claim, and desire to protect by Letters Patent, is'- l. In an apparatus for elevating and con- Veying molten glass from the furnace to the casting-table, in combination, a pot which contains the molten glass, a hydraulic jack, an overhead carrier havin g a portion internally threaded, a fram e, a threaded rod which passes through said threaded portion of the carrier an d said frame, connection between said frame veying molten glass from the furnace to the casting-table, in combination, a pot which contains the molten glass, a hydraulic jack, an overhead carrierhaving axles at its ends, upon which Wheels 4are secured, the arms of said carrier extending from said axles to a point central to and below said axles, the juncture of said arms being internally threaded, a frame, a screw-rod Which passes through said threaded portion of the carrier and said frame, a nut at the end of said rod, said frame being connected to the pot by iiexible connections, and a track extending from said lifting device to the casting-table. y

In testimony of Which invention I have hereunto set my hand, at New Albany, in the county of Floyd and State of Indiana, this 16th day of November, 1889.

FRANK SOHEFOLD. lllitncsses:

ANDnos HUNCILMAN, G. NV. RUNDELs. 

